> This being the internet and all, Wiki has a list by nationality:
>
> http://en.wikipedia.org/wiki/Category:Spree_killers_by_nationality
>
> A brief, dismal read indicates that the US has far and away the most such
> killers, with 49 listed, and 50 soon to be. Australia appears to come in
> second with 5. I doubt if this list is complete, however, as none from
> Great Britain are listed, and believe there have been several of such in
> the
> Mother Country.
>
i think you'd have to analyze across countries as a rate since the populations of the countries are so different. in other words, that there are 10x as many American spree shooters as in other countries might only mean that the US has 10x the population as those other countries.
shag